Marble for Marble Machines
thingiverse
This is a part of a smaller less "famous" marble machine for people who dont have marbles (like me) i assume it works with every marble machine
Download Model from thingiverse
With this file you will be able to print Marble for Marble Machines with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Marble for Marble Machines.